Page 2377 of 2572

05-1 122
- DIAGNOSTICSAIR CONDITIONING SYSTEM
1312 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)ItemDiagnostic Note Normal Condition Measurement Item/Display
(Range)
A/O DAMP POSAir outlet damper position
/min.: -14% max.: 113.5%Changes depending on air outlet
power position-
A/M DAMP TARG-D
Air mix damper target position
(Driver side)
/min.: -14% max.: 113.5%Changes depending on the set
temperature (Driver side)-
A/O DAMP TARGAir outlet damper target position
/min.: -14% max.: 113.5%Changes depending on air outlet
power position-
BLOWER LEVELBlower motor speed level
/min.: Level 0 max.: Level 31Changes depending on blower lev-
el-
#CODESNumber of Trouble Codes
/min.: 0 max.: 255--
HAND FREE TELHands free telephone / OFF, ON--
SET TEMP SHIFTShift set temperature/2C decr, 1C
decr, NORMAL, 1C incr, 2C incrChanges depending on shift set
temperature *1-
COMPRESSOR MODECompressor mode
/AUTO, MANUALChanges depending on compres-
sor mode *1-
COMPRS/DEF OPERCompressor/DEF operation mode
/LINK, NORMALChanges depending on compres-
sor/DEF operation mode *1-
HINT:
*1: It differs depending on the user setting.
Page 2378 of 2572
F10007
F10008A
F10009A
F10010
Cutting Okay
Reinforcement
Corners
WRONG
INTRODUCTIONIN-10
PROPER AND EFFICIENT WORK
PROCEDURES
1. REMOVAL
(a) PRE-REMOVAL MEASURING
(1) Before removal or cutting operations, take measure-
ments in accordance with the dimension diagram. Al-
ways use a puller to straighten a damaged body or
frame.
(b) CUTTING AREA
(1) Always cut in a straight line and avoid reinforced area.
(c) PRECAUTIONS FOR DRILLING OR CUTTING
(1) Check behind any area to be drilled or cut to insure
that there are no hoses, wires, etc., that may be dam-
aged.
HINT: See Handling Precautions on Related Compo-
nentsº on page IN-15.
(d) REMOVAL OF ADJACENT COMPONENTS
(1) When removing adjacent components, apply protec-
tive tape to the surrounding body and your tools to pre-
vent damage.
HINT: See Handling Precautions on Related Compo-
nentsº on page IN-15.
Page 2379 of 2572

F10011A
F10012
F10013A
F10014
F10015A
Less than
3mm
Puncher
Air SawOverlap
20 30mm
INTRODUCTIONIN-11
2. PREPARATION FOR INSTALLATION
(a) SPOT WELD POINTS
(1) When welding panels with a combined thickness of
over 3mm (0.12in.), use a MIG (Metal Inert Gas) weld-
er for plug welding.
HINT: Spot welding will not provide sufficient durability
for panels over 3mm (0.12in.) thick.
(b) APPLICATION OF WELD-THROUGH PRIMER
(SPOT SEALER)
(1) Remove the paint from the portion of the new parts
and body to be welded, and apply weld-through prim-
er.
(c) MAKING HOLES FOR PLUG WELDING
(1) For areas where a spot welder cannot be used, use a
puncher or drill to make holes for plug welding.
REFERENCE:mm (in.)
Thickness of welded portionSize of plug hole
1.0 (0.04) under5 (0.20) ù over
1.0 (0.04) - 1.5 (0.06)6.4 (0.25) ù over
1.5 (0.06) over8 (0.31) ù over
(d) SAFETY PRECAUTIONS FOR ELECTRICAL COM-
PONENTS
(1) When welding, there is a danger that electrical compo-
nents will be damaged by the electrical current flowing
through the body.
(2) Before starting work, disconnect the negative terminal
of the battery and ground the welder near the welding
location of the body.
(e) ROUGH CUTTING OF JOINTS
(1) For joint areas, rough cut the new parts, leaving 20 -
30mm (0.79 - 1.18in.) overlap.
Page 2380 of 2572

F10016A
F10017A
F10018A
F10019A
F10020A
Body
Measurement
Diagrams
WRONG
CORRECT WRONG
Tip Cutter
Old
Spot
LocationsNew Spot
Locations
INTRODUCTIONIN-12
3. INSTALLATION
(a) PRE-WELDING MEASUREMENTS
(1) Always take measurements before installing under-
body or engine components to insure correct assem-
bly. After installation, confirm proper fit.
(b) WELDING PRECAUTIONS
(1) The number of welding spots should be as follows.
Spot weld: 1.3 X No. of manufacturer's spots.
Plug weld: More than No. of manufacturer's plugs.
(2) Plug welding should be done with a MIG (Metal Inert
Gas) welder. Do not gas weld or braze panels at areas
other than specified.
(c) POST-WELDING REFINISHING
(1) Always check the welded spots to insure they are se-
cure.
(2) When smoothing out the weld spots with a disc grind-
er, be careful not to grind off too much as this would
weaken the weld.
(d) SPOT WELD LOCATIONS
(1) Try to avoid welding over previous spots.
(e) SPOT WELDING PRECAUTIONS
(1) The shape of the welding tip point has an effect on the
strength of the weld.
(2) Always insure that the seams and welding tip are free
of paint.
Page 2381 of 2572
F10021A
F10022
F10023
Sealer Gun
INTRODUCTIONIN-13
4. ANTI-RUST TREATMENT
(a) BODY SEALER APPLICATION
(1) For water-proofing and anti-corrosion measures, al-
ways apply the body sealer to the body panel seams
and hems of the doors, hoods, etc.
(b) UNDERCOAT APPLICATION
(1) To prevent corrosion and protect the body from dam-
age by flying stones, always apply sufficient under-
coat to the bottom surface of the under body and in-
side of the wheel housings.
5. ANTI-RUST TREATMENT AFTER PAINTING
PROCESS
(a) ANTI-RUST AGENT (WAX) APPLICATION
(1) To preserve impossible to paint areas from corrosion,
always apply sufficient anti-rust agent (wax) to the in-
side of the hemming areas of the doors and hoods,
and around the hinges, or the welded surfaces inside
the boxed cross-section structure of the side member,
body pillar, etc.
Page 2382 of 2572
F10024A
Apply the anti-chipping paint after
the top coat.Apply the anti-chipping paint before
the second coat.
Anti-Chipping Paint
Top Coat
Second Coat
Under Coat (ED Primer)
Steel MetalTop Coat
Second Coat
Anti-Chipping Paint
Under Coat (ED Primer)
Steel Metal
INTRODUCTIONIN-14
6. ANTI-RUST TREATMENT BY PAINTING
REFERENCE:
Painting prevents corrosion and protect the sheet
metal from damage. In this section, anti-chipping paint
only for anti-corrosion purpose is described.
(a) ANTI-CHIPPING PAINT
(1) To prevent corrosion and protect the body from dam-
age by flying stones, etc., apply anti-chipping paint to
the rocker panel, wheel arch areas, balance panel,
etc.
HINT:
Depending on the model or the application area, there
are cases where the application of anti-chipping paint
is necessary before the second coat or after the top
coat.
Page 2383 of 2572

05CD2-13
05-786
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
976 Author: Date:
PROBLEM SYMPTOMS TABLE
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the
order given in the table below and proceed to the relevant troubleshooting page.
NOTICE:
When replacing the skid control ECU, sensor, etc., turn the ignition switch off.
SymptomsSuspected AreasSee page
ABS does not operate
BA does not operate
EBD does not operate
1. Check the DTC again and make sure that the normal
code is output.
2. IG power source circuit and ground circuit.
3. Speed sensor circuit
4. Check the ABS & TRAC actuator with a hand-held tes-
ter.
If abnormal, check the hydraulic circuit for leakage.
5. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-827
05-788
05-795
32-36
ABS does not operate efficiently
BA does not operate efficiently
EBD does not operate efficiently
1. Check the DTC again and make sure that the normal
code is output.
2. Speed sensor circuit
3. Stop lamp switch circuit
4. Check the ABS & TRAC actuator with a hand-held tes-
ter.
If abnormal, check the hydraulic circuit for leakage.
5. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-788
05-795
32-36
ABS warning light abnormal Remain ON1. ABS warning light circuit
2. Skid control ECU05-840
-
ABS warning light abnormal Does not light up1. ABS warning light circuit
2. Skid control ECU05-844
-
DTC of ABS check cannot be done
1. Check the DTC again and make sure that the normal
code is output.
2. TC terminal circuit
3. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-868
Sensor signal check cannot be done1. TS terminal circuit
2. Skid control ECU05-873
-
VSC and/or TRAC does not operate
1. Check the DTC again and make sure that the normal
code is output.
2. IG power source circuit and ground circuit.
3. Check the hydraulic circuit for leakage.
4. Speed sensor circuit
5. Deceleration sensor circuit
6. Yaw rate sensor circuit
7. Steering sensor circuit
8. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-827
-
05-788
05-795
05-815
05-824
05-824
05-821
SLIP indicator light abnormal1. SLIP indicator light circuit
2. Skid control ECU05-863
-
Page 2384 of 2572

- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-787
977 Author: Date:
SymptomsSuspected AreasSee page
TRAC OFF indicator abnormal
1. Check the DTC again and make sure that the normal
code is output.
2. TRAC control switch circuit
3. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-859
DTC of VSC check cannot be done
1. Check the DTC again and make sure that the normal
code is output.
2. TC terminal circuit
3. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-868
VSC warning light abnormal Remain ON
1. Check the DTC again and make sure that the normal
code is output.
2. VSC warning circuit
3. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-847
VSC warning light abnormal Does not light up
1. Check the DTC again and make sure that the normal
code is output.
2. VSC warning circuit
3. If the symptoms still occur even after the above circuits
in suspected areas are inspected and proved to be
normal, replace the skid control ECU.05-765
05-851